Technology · ServiceNow Development
ServiceNow Coding Best Practices
Write cleaner, faster, and more secure ServiceNow code — from GlideRecord queries to REST APIs and ATF testing.
Instructor
Bogdan IonescuServiceNow Coding Best Practices is a intermediate Technology course on PluQuiz AI featuring 6 modules and 36 lessons across approximately 15 hours. Last updated March 2026.
About this course
Overview of what this course covers and who it is for.
Master the art of writing clean, performant, and secure code on the ServiceNow platform. This 6-week intermediate course covers GlideRecord optimization, server-side and client-side scripting patterns, REST API integrations, Flow Designer scripting, testing with ATF, debugging, and deployment best practices. Built for developers and admins who want to level up their ServiceNow coding skills.
What you will learn
Outcomes
Establish and follow consistent coding standards and naming conventions
Write optimized GlideRecord and GlideQuery database queries
Build performant Business Rules, Script Includes, and server-side scripts
Create responsive client-side experiences without degrading performance
Design robust REST API integrations with proper error handling
Test, debug, and deploy ServiceNow code with confidence
Study pace
At 60 minutes per day, you would finish in 3 weeks.
Prerequisites
Recommended background before you start.
Basic ServiceNow administration knowledge, familiarity with JavaScript fundamentals, and access to a ServiceNow developer instance.
Full curriculum
What’s inside
- Welcome to ServiceNow Coding Best PracticesFree Preview25m
- The ServiceNow Scripting Landscape25m
- Naming Conventions and Code Organization25m
- Comments, Documentation, and Maintainability25m
- System Properties Over Hardcoding25m
- Introduction to Instance Scan25m
- GlideRecord EssentialsFree Preview25m
- Query Optimization Techniques25m
- Common GlideRecord Pitfalls25m
- GlideAggregate for Efficient Counting25m
- Introduction to GlideQuery25m
- Choosing the Right Data Access Pattern25m
- Business Rules Deep DiveFree Preview25m
- Business Rule Performance Patterns25m
- Script Includes for Reusability25m
- Client-Callable Script Includes and GlideAjax25m
- Scheduled Jobs and Events25m
- Server-Side Security Patterns25m
- Client Scripts Done RightFree Preview25m
- UI Policies vs Client Scripts25m
- GlideAjax Mastery25m
- Client-Side Performance Optimization25m
- Catalog Client Scripts and UI Actions25m
- Debugging Client-Side Code25m
- Scripted REST APIsFree Preview25m
- REST API Design Patterns25m
- Outbound REST Integrations25m
- Flow Designer: When Low-Code Meets Scripting25m
- Integration Security25m
- Integration Error Handling and Logging25m
- Automated Test Framework (ATF)Free Preview25m
- ATF Best Practices25m
- Script Debugger and Script Tracer25m
- Scoped Application Development25m
- Update Sets and Source Control25m
- Code Review Checklist and Continuous Improvement25m
Your instructor
Learn directly from the author of this course.
Bogdan Ionescu
Course creator
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Frequently asked questions
How long does ServiceNow Coding Best Practices take to complete?
ServiceNow Coding Best Practices contains 6 modules. Most learners complete it in 15 hours.
Is ServiceNow Coding Best Practices free?
Yes — ServiceNow Coding Best Practices is free to enroll.
Mar 2026
Published
